IN139160B - - Google Patents
Info
- Publication number
- IN139160B IN139160B IN2188/CAL/74A IN2188CA1974A IN139160B IN 139160 B IN139160 B IN 139160B IN 2188CA1974 A IN2188CA1974 A IN 2188CA1974A IN 139160 B IN139160 B IN 139160B
- Authority
- IN
- India
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
- G08B17/113—Constructional details
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA734995A ZA734995B (en) | 1973-07-23 | 1973-07-23 | Improvemente in or relating to fire detectors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN139160B true IN139160B (en) | 1976-05-15 |
Family
ID=25566610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN2188/CAL/74A IN139160B (en) | 1973-07-23 | 1974-09-28 |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3980928A (en) |
| JP (1) | JPS5718240B2 (en) |
| CA (1) | CA1030634A (en) |
| CH (1) | CH585446A5 (en) |
| DE (1) | DE2435053B2 (en) |
| DK (1) | DK396174A (en) |
| FR (1) | FR2238506B1 (en) |
| GB (1) | GB1458098A (en) |
| IN (1) | IN139160B (en) |
| ZA (1) | ZA734995B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5878B2 (en) * | 1976-01-30 | 1983-01-05 | 松下電工株式会社 | ionization smoke detector |
| US4091430A (en) * | 1976-11-11 | 1978-05-23 | Rca Corporation | Guard circuit for high impedance signal circuits |
| DE2711457C2 (en) * | 1977-03-16 | 1985-06-27 | Siemens AG, 1000 Berlin und 8000 München | Ionization fire detector |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3529201A (en) * | 1968-11-12 | 1970-09-15 | United States Steel Corp | Glow discharge suppressing insulator |
| DE2029485B2 (en) * | 1969-06-21 | 1971-11-25 | Nittan Co. Ltd., Tokio | IONIZATION SMOKE SENSORS |
| US3824422A (en) * | 1972-06-27 | 1974-07-16 | Anglo Amer Corp South Africa | Smoke detectors |
-
1973
- 1973-07-23 ZA ZA734995A patent/ZA734995B/en unknown
-
1974
- 1974-07-19 CH CH1000974A patent/CH585446A5/xx not_active IP Right Cessation
- 1974-07-20 DE DE2435053A patent/DE2435053B2/en not_active Withdrawn
- 1974-07-22 US US05/490,781 patent/US3980928A/en not_active Expired - Lifetime
- 1974-07-22 CA CA205,251A patent/CA1030634A/en not_active Expired
- 1974-07-22 GB GB3242274A patent/GB1458098A/en not_active Expired
- 1974-07-23 DK DK396174A patent/DK396174A/da unknown
- 1974-07-23 JP JP8452474A patent/JPS5718240B2/ja not_active Expired
- 1974-07-23 FR FR7425524A patent/FR2238506B1/fr not_active Expired
- 1974-09-28 IN IN2188/CAL/74A patent/IN139160B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5072598A (en) | 1975-06-16 |
| ZA734995B (en) | 1974-10-30 |
| GB1458098A (en) | 1976-12-08 |
| CA1030634A (en) | 1978-05-02 |
| FR2238506B1 (en) | 1977-06-24 |
| DK396174A (en) | 1975-03-03 |
| AU7150774A (en) | 1976-01-22 |
| CH585446A5 (en) | 1977-02-28 |
| DE2435053B2 (en) | 1980-02-07 |
| FR2238506A1 (en) | 1975-02-21 |
| JPS5718240B2 (en) | 1982-04-15 |
| DE2435053A1 (en) | 1975-04-24 |
| US3980928A (en) | 1976-09-14 |